Finding the Fourth Proportional to 1,903.72, 2,627.12 and 1,157.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,903.72 : 2,627.12 = 1,157.54 : x
2. Step 2: Convert to fraction form
   1,903.72/2,627.12 = 1,157.54/x
3. Step 3: Cross multiply
   1,903.72x = 2,627.12 × 1,157.54
4. Step 4: Simplify right side
   1,903.72x = 3,040,994.51
5. Step 5: Solve for x
   x = 3,040,994.51/1,903.72
6. Step 6: Final answer
   x = 1,597.40